S x  p pat f n t off ic f



L. R. LEMOINE. GAS BURNER FOR PIPE MOLDS. APPLICAIION HLED N0v.2I,

Patented Sept. 7 5 1920. 2 SHEETS-SHEET 1- L. R. LEMOINE; GAS BURNER FOB PIPE MOLDS APPLICATION FILED NOV-2], I918! Patented Sept. 7, 1920:,

2 SHEETS-SHEET 2- elite mama UNITED STATES? a sNr- 'oFric"a. 1

LOUIS n. EMoINE, or PHILADELPHIA, PENNSYLVANIA, assiGNoa-ro emansqiees cAsrrnoN PIPE & roU nY OOMPANY,OFJ3UBLINGTO 1\T; NEW-JERSEY, -A\COB1E 0B,A-

TION OF NEWJERSEY. V I

' T0 all' whom z't may concern:

. Be it known-that 1, Lou s B. LE OINE, a "citizen of the United States, and a resident vof the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Gras- Burners for Pipe-Molds, of which the. following is a true and exact description, reference, being had to the accompanying drawings which form a part thereof.

My present invention consists in improvements in a gas burner. and the supply piping therefor, especially. devised with the object .of providing simple, compact and effective means for drying vertical pipe molds. I

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part ofthis specification.

Ofthe drawings:

For abetter understanding of. theinven- .tion,'however, and the advantages-possessed by it reference should be had to the accompanying drawings and descriptivematter; in which 1 have illustrated and. described preferred embodiments of my. invention.

Figure 1 is a diagrammaticrepresentation of .a portion of a'pipe molding plant with parts broken away and removed. 7 i r Fig. 2 isfa partial sectional elevation,:the

Fig. 1.

Fig. 4 is a section "of the. portion ofthe apparatus shown in Fig. 2. 1 Fig. 5 is a'plan view of'one of the burner 'heads. 1 y Y .Fig. 7 V vvalvespthe section being taken on'the line.

7. is. a section of one of the gas supply 77. of Fig. 8,'and

Fig. 8 is a section taken on the line 8'8 I Inthe pipe molding plant partially shown diagrammatically in Fig. 1, there are'acircular-seri'es of vertically disposed double pipe molds H. These molds may befsuspended-from the: wall vofthe pipe pit, or

the lower'end of the pipe moldsis an arc specificationof Letters Patent.

interrupted- 7 o Thefree end .of-the pipe E is upturned andis connected to the underside of a hori-x zontal chambered member F atpoints mid- GAS-BURNER roe PIPE-Moths.

I rate tedsertv, 1920i. Application filed Nevem r 21,-1e1a, Serial No. 2 3,484. Y

Sa -a gs apayipijpe Ma...

is closed at its ends and receives combustible" gasthrough a maln B.- Rising from the are prises a chambered body witha flat under @side'in which inlet portsyD are formed.

The fiat underside of the valve member 1) bearsagai-nst the flat upper side of a chambered end member D threaded on theupper end of the corresponding branch pipe 0. In

the flat upper side OfjlihB end member I)? ports D? are'formed. The valve memberiD is journaled on the end member D v by means [of a bolt D .passing'through both thetop and bottom walls of the. valve member "1),

and anchored-at its-lower end in the topwall of the enidmember D A spring D interposed between a nut on the upper end of the bolt D and a washer D bearing against the upper side'of the valve member D holds 'jthe valve member snugly 'against the.end; member Dti As 'shownythe spring D also serves to compress a packing" D "surrounding the bolt D and arrangedin a depression or grooveuformedin-the upper side of the I valve member-D above the bolt Di; The; :section being taken on the line of" upperedge of this, packingis engaged-by the washer Whenthe valve and end member parts. Di and D? are in thegrelative positions shown in Figs. 2,l7 and S the ports Dand D? register and gas may pass from;

the pipe G through the valve ,D to-the pipe D is. turned relative to the. end member D about the boltD aszan axis, the ports D'a; are moved out ofzregister with the, ports D and the flow of gas through the valve is way between theends of thelatter. Preferably, the member F is capable of angular adjustment about' the upturned end of the pipe E to which it is connected. With the .a gas pressures employed, however,';itcisnot necessary toprovide-a special swivel: joint connection to permit of thisadjustment'; A

.E-connectedtothe valve member D, at one c V V L 'side ofthe latter. .When the Tvalve member Fig. '6 is a section onthe line 06 of simple threaded connection between the pipe and'cthe member- F, illustrated in Fig-4; 13-110 permits necessary adjustment of the I 'mmbr'F with respect-tothepipe E. Gas

- 'tling devicec'onsis'ts-of a disk-F '2coaxia1 burners-G are-mounted'on the upper side of each chambered member F, one at each end of the latter. As shown, each burner .G

comprises a lower sleeve portion which tele-v scopes over atubular portion F ofthe member F. Each, burner G is formed with a burner head having gas channels 1 G gas ports G and air channels G arranged in a well-known manner? i-- To permit of an independent adjustment of the gas passingto each burnerhead I advantageously provide a gas throttling device foreach burner. .As shown-,this throtwith the corresponding tubular part I? and the corresponding tubular part F to thereby throttle more-or less the gas outlet through "the tubular "part F With -t-he construction described a series of pipe-molds arranged, as shown in Fig. 1, are dried by swinging the arms E into the positionin which one burner is below a correspondin one of each" of the pipe -mold -cavities brings the ports D of each valve member D 1370f the molds tobe;dried. *This into registerwith,the'ports D in the 1 end -'meniber D*jon which the valve member is ournaled. The =gas-issu1ng= from each 'burner is ignitedand the-mold is dried by the resulting gas flame passingfup'ward into the correspondingmold cavity.* When the molds-are-sufiiciently dried the pipes E are swung around to carry the burners G out 'from :under thepipemolds. This cuts oil thegsupply of gas to theburners by moving the valve portsD' out ofregister with the corresponding end member ports D it also gets'the burners out of a position in which they -mi'ght interfere with the inse rtion of core barsinthe molds, or the manipulation of the chill plates whichclose the lower end o'fthe mold cavities during the casting operation.

The arrangement described obviously ftendsto auniform distribution of: gas to the different burners-and the exact desired distribution to the different-burners may be obtainediby adjusting the various throttling -de'vices' It" is desirable to have each burner in iaxial alinement with the corre- I 5.1 0.

sponding mold cavity, and in case the axes of -.the two1'mo1d cavities o fa double mold ;'do not liefin' the same radial plane this -may be compensated vtor by a slight angular adjustment ofg-the chambered member F :about the upturned .end .ofuthe correspondcent the lower end otthe latter.

"mg' ipe E. When, is is frequently necessary, it is-desired to usethe:;aigameidriers with pipe molds 0's different lengths this may be re'adily a ecomplished by providin each branch pipe E with a plurality of sets of burners located at different levels, as shown in .Fig. 3, wherein, a second valve member DA is connected to the'pip'e C'adj'a- The valve member DA proper may be identical in construction with the *valv'e member (D, described above, and themember D, on which theyalve member DA is "mounted, differs fromthe member D of the constru ction-first described only in being provided with a lateral o aeningiinsteadof an opening" in its bottom :orconnection to the pipe G. .As "shown, the member 'D iis connected to the portion Cof theT connecting the pipe C to the pipe A.- As shown in Fig.2, the..T

portion C isclosed by asuitableplugv :The

pipe EA, connectedto the outlet-of the valve member DA, dii'lers from, the pipe E, only in being slightlyshorter. The hollow member F, secured to the upper endzofathe .pipe EA,

, and the burners G, carriedlbyithe member F, i may be identical with themember JEta'nd burners Gr supported by theipipeiarm xE. v

With theconstruction-shownin Fig. 3,.the

valve members DA, and parts' carried there- I by," are thrown intotheir operativepositions, and then used todry out pipe moldsHA,

having their lower ends :at iawlevel .a' little above the topsof the correspondingv burners G. In this zuseofithe apparatus the .iburneri supporting arms E are swung .intothe inoperative positionwas indicated in.:full lines in Fig. VVhenshorter pipeimolds' are to be dried out the burner supporting-arms E are swung :into operative'p'osition. and the arms EA1 are turned :into the inoperative position. a

WVhile in accordance with the provisions of the statutes I have illustrated and.de-'

scribed-the best forms of my invention Snow:

known to me, it will be apparenti to :those skilled in the art that: changesmay be 2 made out departing from the-spirit of my'invention as set forth in the appended claims, and-'i that certain features I of .my .inven'tion may. sometimes be used to advantage'witho'ut: a

corresponding use invention; 1 .1

Having now described my inventiomwhat I claimas new and desireto secure by Letters Patent, is:

of other features of the in the form of the apparatus disclosedwith- V l. A pipe mold drying apparatus comprising means for'supportingfl-a smultiple number of plpe'molds, agasimain, amultherefrom, .valves connected .to said delivery p pes each comprising .a fixed imeinber secured to a pipe and a pivotedmeinberjturn- .ing thereon, .and burner supporting pipes- 525 tiple number ofgas deliveryipipes-leading 1 connected to the pivoted valve membersand rotatable from a position in which the burner registers with a mold to a non-registering position, said valve members being so arranged as to open when the burner pipes are in registry with a mold and close when they are rotated away from such position.

2. A pipe mold drying apparatus comprising means for supporting a multiple num-- ber of pipe molds, a gas main, a multiple number of gas delivery pipes leading therefrom, valve members pivotally connected to said pipes to turn about vertical axes, and each formed with a thoroughfare opened and closed by turning'the valve member about its axis, burner supporting ipes conporting pipes to bring the burners into operative position with the molds the valves are opened, and in swinging them away from such position the valves are closed.

3. A mold drying apparatus comprising means for supporting a multiple number of a i e molds a as main a multi le number of gas delivery pipes leading therefrom,

valves connected to said delivery pipes each comprising a fixed member secured to a pipe and a pivoted member'turning thereon,

burner supporting pipes connected to the pivoted valve members and rotatable from 1 a position in which the burner registers with a mold to a non-reg1ster1ng position,

burners supported on said pipes, regulating valves for each burner, said valve'members being so arranged as to open when the burner plpes are lnregistry with a, mold and close when they are rotated away from such position.

4. A pipe mold drying apparatus comnumber of pipe molds, a gas main, a mul tiple number of gas delivery pipes leading therefrom, a plurality of valves connected to each of said delivery pipes at different.

levels, each valve comprising a fixed member and a rotatable member, burner supporting pipes connected to each rotatable valve member, those connected to valves on the same delivery pipes extending atdifl'erent levels, burners supported onsai'd supporting pipes, said valves being arranged so as to open when the burners are turned to operatlve positlon.

LOUIS LEMOINE.

prising means 'for supporting a multiple 

